I suppose we all suspected this might happen sooner or later. Finnair will begin weighing volunteer passengers and their carry on baggage in order to improve aircraft balance calculations. https://www.finnair.com/us-en/bluewings/world-of-finnair/finnair-collects-data-from-volunteers-at-helsinki-airport-on-the-average-weight-of-passengers-and-carry-on-baggage-for-flight-balance-calculations-3269366
It seems like a gimmick somehow, it's a big plane and is designed for purpose. I did have to do this on a helicopter tour over Hawaii, but that makes sense.
https://community.ricksteves.com/travel-forum/transportation/please-step-on-the-scale
Time to do the update it seems.
Also not the only airline to conduct such research
https://community.ricksteves.com/travel-forum/transportation/weight-check-at-it-s-not-your-luggage
We’ve had to be weighed when flying on smaller planes.